MUR Series Rects....

195.99.125.202

Posted by Thorsten on July 14, 1999 at 02:46:29

In Reply to: I can prove it!! posted by Quest on July 12, 1999 at 11:39:55:

Yo Quest Dude,

ThanX for the little Parcel. A very pleasant surprise. Nice to hear you like yor new Amp....

As for the MUR Diodes I personally use the following scheme:

Before the Rectifie I connect a moderate Value Resistor usually a 39 Ohm Allen Bradly Carbon Comp in each leg. After that a 10nF Paper/Oil Cap (a few kV) across the input and the output of the Rectifier to sink noise....

This works well and has all the good sides of a Valve Rectifier without the bad ones.... That said, my recipy for Bass-Slam and speed is to use a regulated PSU with a twist....

My Design of PSU deliberatly reducecs the Open Loop Gain of the Reg dramatically above a few 100Hz (if it uses Feedback) and each reg is designed to hand over smoothly (witout any reactive peaks) to large value Polypropylen Capacitors that essentially deal with the PSU from the upper bass upwards (I aim for a 100-200Hz "crossover"....

It does require a lot more parts tha a simple unregged supply but allows for unweighted > 96db S/N (re. 1W) in a 300B SE Amplifier....

I can't hear a thing with my head stuck into the Front-Horns of the Lowthers I use nowadays.... That is no audible noise with a 103db/W/m Speakers at a much closer range than 1m....

Ciao Thorsten

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - To Doc B.: Tube used as active load for your preamp. - Tom S. 05:27:40 07/12/99 (23)

oh brother, Doc gets preachy again. - Doc B. 09:01:15 07/12/99 (23)

SS rectification and ST-70 - Tom Kuhn 21:58:50 07/12/99 (2)

Re: SS rectification and ST-70 - john curl 15:25:23 07/15/99 (0)

Hehehe....... - Tom S. 10:14:26 07/12/99 (19)

Re: Hehehe....... - Jack G 11:01:22 07/12/99 (8)

Re: Hehehe....... - Tom S. 11:45:15 07/12/99 (7)

Re: Hehehe....... - Jack G 04:57:18 07/13/99 (6)

Re: Hehehe....... - Tom S. 05:44:09 07/13/99 (5)

Re: Hehehe....... - Doc B. 08:45:00 07/13/99 (4)

Re: Hehehe....... - Jack g 08:56:57 07/13/99 (2)

Re: Hehehe....... - Doc B. 14:00:46 07/13/99 (1)

good point.(nt) - Jack G 04:54:05 07/14/99 (0)

Re: Hehehe....... - Tom S. 08:56:11 07/13/99 (0)

Re: Hehehe....... - Doc B. 10:51:25 07/12/99 (9)

I can prove it!! - Quest 11:39:55 07/12/99 (8)

MUR Series Rects.... - Thorsten 02:46:29 07/14/99 (4)

Re: MUR Series Rects.... - Brad 02:17:42 07/16/99 (1)

thanks Brad :-) (nt) - Quest 08:33:51 07/16/99 (0)

my dear friend Thorsten.. - Quest 11:42:30 07/15/99 (0)

Thanks again Thorsten :-> (nt) - Quest 11:35:11 07/15/99 (0)

Re: I can prove it!! - Doc B. 14:12:05 07/12/99 (2)

Re: UF4007 - MIKE 17:40:05 07/12/99 (1)

Re: UF4007 - Doc B. 20:39:47 07/12/99 (0)

Follow Ups

MUR Series Rects.... - Thorsten 02:46:29 07/14/99 (4)

Re: MUR Series Rects.... - Brad 02:17:42 07/16/99 (1)

thanks Brad :-) (nt) - Quest 08:33:51 07/16/99 (0)

my dear friend Thorsten.. - Quest 11:42:30 07/15/99 (0)

Thanks again Thorsten :-> (nt) - Quest 11:35:11 07/15/99 (0)

You can not post to an archived thread.